PDCD1 and Miyoshi myopathy: The frequencies of PD‐1+ and 4‐1BB+ cells in undefined (the rest of) CD45+, Tim‐3+ cells in DC, LAG‐3+ cells in CD16− NK cells, and PD‐L2+ cells in CD16+ NK cells were also significantly increased in MM patients (Figure 4c–e and Supplementary figure 5a–c).